a car start from rest and accelerate uniformly until it reaches a velocity of 30m/s...

a car start from rest and accelerate uniformly until it reaches a velocity of 30m/s after 5 seconds. it travels with uniformly velocity for 15 seconds and it then brought to rest in 10 seconds with the uniform retardation. calculate the total distance travel;
1.after the first 5 seconds
2.after 30 seconds?